diff --git a/data/coco_100img.data b/data/coco_100img.data
index aa96ad45..716cf7c9 100644
--- a/data/coco_100img.data
+++ b/data/coco_100img.data
@@ -1,6 +1,6 @@
 classes=80
-train=../coco/coco_100img.txt
-valid=../coco/coco_100img.txt
+train=./data/coco_100img.txt
+valid=./data/coco_100img.txt
 names=data/coco.names
 backup=backup/
 eval=coco
diff --git a/data/coco_10img.data b/data/coco_10img.data
index 7b291283..ea37a698 100644
--- a/data/coco_10img.data
+++ b/data/coco_10img.data
@@ -1,6 +1,6 @@
 classes=80
-train=../coco/coco_10img.txt
-valid=../coco/coco_10img.txt
+train=./data/coco_10img.txt
+valid=./data/coco_10img.txt
 names=data/coco.names
 backup=backup/
 eval=coco
diff --git a/data/coco_1cls.data b/data/coco_1cls.data
index 8b390171..a19e3c0f 100644
--- a/data/coco_1cls.data
+++ b/data/coco_1cls.data
@@ -1,6 +1,6 @@
-classes=80
-train=../coco/coco_1cls.txt
-valid=../coco/coco_1cls.txt
+classes=1
+train=./data/coco_1cls.txt
+valid=./data/coco_1cls.txt
 names=data/coco.names
 backup=backup/
 eval=coco
diff --git a/data/coco_1img.data b/data/coco_1img.data
index 04142671..d97252f2 100644
--- a/data/coco_1img.data
+++ b/data/coco_1img.data
@@ -1,6 +1,6 @@
 classes=80
-train=../coco/coco_1img.txt
-valid=../coco/coco_1img.txt
+train=./data/coco_1img.txt
+valid=./data/coco_1img.txt
 names=data/coco.names
 backup=backup/
 eval=coco
diff --git a/train.py b/train.py
index 7ea5b763..a62612ce 100644
--- a/train.py
+++ b/train.py
@@ -33,7 +33,7 @@ def train(
         img_size = 608  # initiate with maximum multi_scale size
         num_workers = 0  # bug https://github.com/ultralytics/yolov3/issues/174
     else:
-        pass  # torch.backends.cudnn.benchmark = True  # unsuitable for multiscale
+        torch.backends.cudnn.benchmark = True  # unsuitable for multiscale
 
     # Configure run
     train_path = parse_data_cfg(data_cfg)['train']